Photo showing a freshwater tropical aquarium fish tank, stocked with small male guppies. These guppy fish (million fish / rainbow fish - Latin name: Poecilia reticulata) all have large blue tails and dorsal fins, and look particularly impressive shoaling around as just one colour, rather than a mixture of different colours and fish.
Relevant image keywords:
animals, aquarium, blue tail guppies, dorsal fins, fins, fish, fish tank, fishbowl, freshwater, gravel, green, guppies, liquid, male, male guppy, million fish, pet equipment, pets, poecilia, poecilia reticulata, reticulata, shoal, tails, tropical, tropical aquarium, underwater, water
